How many emails can I send?

I am not sure if I have understood your question correctly.

Are you asking about replying or forwarding submissions in emails? Please note that there are limits on how many submissions can be replied/forwarded from form's submission page. For free account the limit is 20 reply/forwards per day and for paid accounts its 100 reply/forwards per day.

Hope this answers your query.

Do get back to us if you meant to ask something else.